An integrated independent suspension

Abstract

The present application relates to a kind of integrated independent suspension, including trapezoidal beam, trapezoidal beam both ends connect cross arm support assembly, cross arm support assembly includes cross arm fixed support, upper cross arm and lower cross arm, trapezoidal beam upper end connects cross arm fixed support, trapezoidal beam lower end connects lower cross arm, cross arm fixed support lower end is equipped with upper cross arm, the outer abdominal surface of cross arm fixed support is equipped with shock absorber upper support, shock absorber upper support connects shock absorber assembly, shock absorber assembly one end is connected with shock absorber upper support, shock absorber assembly other end is connected with air spring assembly;Cross arm fixed support inner abdominal surface is connected with frame longitudinal beam;The present application is suitable for vehicle front end arrangement space limited, there is special comfort and height adjustment demand vehicle and new energy fuel heavy-duty vehicle, independent suspension structure uses integrated structure, realize light weight, save arrangement space, overall structure is combined with vehicle longitudinal beam, system mechanics performance is more optimal, frame is better stressed under different working conditions.

Description

Technical Field

[0001] This invention relates to the field of automotive suspension technology, and more particularly to an integrated independent suspension. Background Technology

[0002] The current new energy vehicle industry is experiencing a surge in market demand. New energy heavy-duty vehicles with charging, battery swapping, and fuel cell technologies can meet the needs of different market segments. Fuel cell modules have higher heat dissipation requirements, and the trend towards flattened cooling modules means that conventional leaf spring suspensions, which occupy a large amount of space at the front and rear, can no longer meet the overall vehicle layout requirements. Independent suspensions, on the other hand, occupy less space at the front and rear, allowing for shorter front-end designs or providing more installation space for front-end accessories. Furthermore, the use of air springs as the elastic element in independent suspensions results in a lower natural vibration frequency, improving the ride comfort of the vehicle. Therefore, highly integrated independent suspensions are a good solution for new energy fuel cell heavy-duty vehicles. Summary of the Invention

[0003] The purpose of this invention is to provide an integrated independent suspension system that addresses the shortcomings of existing technologies.

[0004] This invention is achieved using the following technical solution:

[0005] An integrated independent suspension includes a trapezoidal beam with two ends connected to a transverse arm bracket assembly. The transverse arm bracket assembly includes a transverse arm fixed bracket, an upper transverse arm, and a lower transverse arm. The upper end of the trapezoidal beam is connected to the transverse arm fixed bracket, and the lower end of the trapezoidal beam is connected to the lower transverse arm. The lower end of the transverse arm fixed bracket has the upper transverse arm. The outer surface of the transverse arm fixed bracket has a shock absorber upper bracket, which is connected to a shock absorber assembly. One end of the shock absorber assembly is connected to the shock absorber upper bracket, and the other end of the shock absorber assembly is connected to an air spring assembly. The inner surface of the transverse arm fixed bracket is connected to the vehicle frame longitudinal beam.

[0006] Preferably, the air spring assembly includes an air spring and a kingpin support arm. The kingpin support arm is located between the upper cross arm and the lower cross arm. The upper end of the air spring is fixed to the lower wing surface of the longitudinal beam of the vehicle frame through an upper air spring bracket. The lower end of the air spring assembly is connected to the kingpin support arm.

[0007] Preferably, the kingpin support arm is provided with a lower shock absorber bracket, one end of the shock absorber assembly is connected to the upper shock absorber bracket, the other end of the shock absorber assembly is connected to the lower shock absorber bracket, one end of the kingpin support arm is connected to an air spring, and the other end of the kingpin support arm is connected to the front axle of the vehicle.

[0008] Preferably, a steering rocker arm bracket is provided between the trapezoidal beams, the steering rocker arm bracket is provided with a steering rocker arm, and the steering rocker arm is connected to the steering gear through a steering tie rod.

[0009] Preferably, the trapezoidal beam is further provided with a limiting block, and the limiting block is located at the upper end of the upper cross arm.

[0010] Preferably, the trapezoidal beam is further provided with a stabilizer assembly, which includes a stabilizer and a hanger. The stabilizer is fixedly connected to the trapezoidal beam through a bearing seat, one end of the hanger is connected to the upper cross arm, and the other end of the hanger is connected to the stabilizer.

[0011] Compared with the prior art, the present invention has the following beneficial technical effects:

[0012] This invention is applicable to vehicles with limited front-end space, special comfort and height adjustment requirements, and new energy fuel heavy-duty vehicles. The independent suspension structure adopts a double wishbone, with the wishbone fixed bracket, shock absorber upper bracket, shock absorber lower bracket, kingpin support arm, and steering rocker arm bracket integrated together to achieve light weight and save layout space. The overall structure is combined with the vehicle's longitudinal beam, resulting in better system mechanical performance and better stress distribution on the frame under different working conditions.

[0013] The trapezoidal beam is equipped with a limiting block to limit the upper limit. Due to its structural characteristics, the trapezoidal beam also functions as a crossbeam of the entire vehicle, improving the system strength.

[0014] The stabilizer bar is integrated and fixed to the trapezoidal beam through a bearing housing, and is connected to the upper cross arm through a hanger rod to increase the lateral stiffness of the suspension. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a top view of the structure of the present invention.

[0017] In the diagram, 1. stabilizer bar; 2. upper crossarm; 3. bearing housing; 4. lower crossarm; 5. boom; 6. shock absorber assembly; 7. kingpin support arm; 8. limit block; 9. crossarm fixing bracket; 10. air spring; 11. upper air spring bracket; 12. trapezoidal beam; 13. steering rocker arm bracket; 14. steering rocker arm; 15. steering tie rod; 16. steering gear. Detailed Implementation

[0018] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions of the embodiments of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0019] like Figures 1-2 As shown, an integrated independent suspension includes a trapezoidal beam 12, with both ends of the trapezoidal beam 12 connected to a crossarm bracket assembly. The crossarm bracket assembly includes a crossarm fixing bracket 9, an upper crossarm 2, and a lower crossarm 4. The upper end of the trapezoidal beam 12 is connected to the crossarm fixing bracket 9, and the lower end of the trapezoidal beam 12 is connected to the lower crossarm 4. The lower end of the crossarm fixing bracket 9 is provided with the upper crossarm 2. The outer surface of the crossarm fixing bracket 9 is provided with a shock absorber upper bracket, which is connected to a shock absorber assembly 6. One end of the shock absorber assembly 6 is connected to the shock absorber upper bracket, and the other end of the shock absorber assembly 6 is connected to an air spring assembly. The inner surface of the crossarm fixing bracket 9 is connected to the longitudinal beam of the vehicle frame.

[0020] The crossarm fixing bracket 9 is directly connected to the longitudinal beam of the frame, which serves to fix the upper crossarm 2, the shock absorber assembly 6, and the trapezoidal beam 12. The integrated structure makes the frame better able to withstand stress under different working conditions.

[0021] The air spring 10 is positioned at the bottom, and the cross arm fixing bracket 9 and the trapezoidal beam 12 form a trapezoidal structure that is narrow at the bottom and wide at the top, which provides sufficient space for the fuel cell engine and ensures the structural strength of the front end of the vehicle frame.

[0022] The air spring assembly includes an air spring 10 and a kingpin support arm 7. The kingpin support arm 7 is located between the upper cross arm 2 and the lower cross arm 4. The upper end of the air spring 10 is fixed to the lower wing surface of the longitudinal beam of the vehicle frame through the upper air spring bracket 11, and the lower end of the air spring 10 is connected to the kingpin support arm 7.

[0023] The kingpin support arm 7 is equipped with a lower shock absorber bracket. One end of the shock absorber assembly 6 is connected to the upper shock absorber bracket, and the other end of the shock absorber assembly 6 is connected to the lower shock absorber bracket. One end of the kingpin support arm 7 is connected to the air spring 10, and the other end of the kingpin support arm 7 is connected to the front axle of the vehicle.

[0024] The kingpin support arm 7 integrates the lower support of the shock absorber, and the kingpin support arm 7 connects the air spring 10 to the front axle, transmitting the force of the air spring 10 to the front axle.

[0025] A steering rocker arm bracket 13 is provided between the trapezoidal beams 12. The steering rocker arm bracket 13 is provided with a steering rocker arm 14. The steering rocker arm 14 is connected to the steering gear 16 through a steering tie rod 15.

[0026] The trapezoidal beam 12 is also provided with a limiting block 8, and the limiting block 8 is located at the upper end of the upper cross arm 2.

[0027] The trapezoidal beam 12 is equipped with a limiting block 8, which serves to limit the upper limit. Due to its structural characteristics, the trapezoidal beam 12 also serves as the crossbeam of the entire vehicle, thereby improving the system strength.

[0028] The trapezoidal beam 12 is also equipped with a stabilizer assembly, which includes a stabilizer 1 and a hanger 5. The stabilizer 1 is fixedly connected to the trapezoidal beam 12 through a bearing seat 3. One end of the hanger 5 is connected to the upper cross arm 2, and the other end of the hanger 5 is connected to the stabilizer 1.

[0029] The stabilizer bar 1 is integrated and fixed to the trapezoidal beam 12 through the bearing seat 3, and is connected to the upper cross arm 2 through the hanger 5 to increase the lateral stiffness of the suspension.

Claims

1. An integrated independent suspension, characterized in that, The system includes a trapezoidal beam (12), with both ends of the trapezoidal beam (12) connected to a crossarm bracket assembly. The crossarm bracket assembly includes a crossarm fixing bracket (9), an upper crossarm (2), and a lower crossarm (4). The upper end of the trapezoidal beam (12) is connected to the crossarm fixing bracket (9), and the lower end of the trapezoidal beam (12) is connected to the lower crossarm (4). The lower end of the crossarm fixing bracket (9) is provided with the upper crossarm (2). The outer surface of the crossarm fixing bracket (9) is provided with an upper shock absorber bracket. The upper shock absorber bracket is connected to a shock absorber assembly (6). One end of the shock absorber assembly (6) is connected to the upper shock absorber bracket, and the other end of the shock absorber assembly (6) is connected to an air spring assembly. The inner surface of the crossarm fixing bracket (9) is connected to the longitudinal beam of the vehicle frame.

2. The integrated independent suspension according to claim 1, characterized in that, The air spring assembly includes an air spring (10) and a kingpin support arm (7). The kingpin support arm (7) is located between the upper cross arm (2) and the lower cross arm (4). The upper end of the air spring (10) is fixed to the lower wing surface of the frame longitudinal beam through an air spring upper bracket (11). The lower end of the air spring (10) is connected to the kingpin support arm (7).

3. The integrated independent suspension according to claim 2, characterized in that, The kingpin support arm (7) is provided with a lower damper bracket. One end of the damper assembly (6) is connected to the upper damper bracket, and the other end of the damper assembly (6) is connected to the lower damper bracket. One end of the kingpin support arm (7) is connected to an air spring (10), and the other end of the kingpin support arm (7) is connected to the front axle of the vehicle.

4. The integrated independent suspension according to claim 1, characterized in that, A steering rocker arm bracket (13) is provided between the trapezoidal beams (12), and a steering rocker arm (14) is provided on the steering rocker arm bracket (13). The steering rocker arm (14) is connected to the steering gear (16) through a steering tie rod (15).

5. The integrated independent suspension according to claim 4, characterized in that, The trapezoidal beam (12) is also provided with a limiting block (8), and the limiting block (8) is located at the upper end of the upper cross arm (2).

6. The integrated independent suspension according to claim 3, characterized in that, The trapezoidal beam (12) is also provided with a stabilizer assembly, which includes a stabilizer (1) and a hanger (5). The stabilizer (1) is fixedly connected to the trapezoidal beam (12) through a bearing seat (3). One end of the hanger (5) is connected to the upper cross arm (2), and the other end of the hanger (5) is connected to the stabilizer (1).

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